citizenlab.co

Issued by R3

About this certificate

This digital certificate with serial number 04:0a:82:00:44:71:e0:f5:6d:b0:24:42:e3:67:c8:fc:20:0f was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=citizenlab.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:0a:82:00:44:71:e0:f5:6d:b0:24:42:e3:67:c8:fc:20:0f
Serial Number (int): 352024768423928667044045271348843414036495
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: af:d1:f9:7c:e3:5f:ec:da:4c:4c:d8:51:a8:f7:ce:4c:02:db:2a:08
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): bf:ee:63:b3:24:89:d9:b6:ad:69:ef:81:0c:12:1c:da:29:c8:36:5d
Fingerprint (sha256): 0e:7d:ac:63:8c:c0:53:97:82:14:1c:2f:ed:5a:de:86:fe:99:7a:84:7f:df:64:1e:66:5e:33:fa:d4:21:ee:d6

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate citizenlab.co

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for citizenlab.co

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

citizenlab.co
www.citizenlab.co

Other certificates including the domain name citizenlab.co

(limited to 100 certificates)
*.citizenlab.co
*.citizenlab.co
*.citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
*.citizenlab.cl
*.citizenlab.co
*.meinaugustusburg.de
pl.citizenlab.co
*.hq.citizenlab.co
citizenlab.co
*.hq.citizenlab.co
*.hq.citizenlab.co
*.meinaugustusburg.de
citizenlab.co
api.inspire.citizenlab.co
citizenlab.co
demain-mont-saint-guibert.be
*.citizenlab.co
citizenlab.co
*.meinaugustusburg.de
citizenlab.co
*.hq.citizenlab.co
www.zukunft-pfaffenhausen.de
citizenlab.co
citizenlab.co
www.schiedammersmakendestad.nl
citizenlab.co
*.citizenlab.co
www.zukunft-pfaffenhausen.de
*.citizenlab.co
citizenlab.co
citizenlab.co
*.citizenlab.co
jobs.citizenlab.co
*.hq.citizenlab.co
api.inspire.citizenlab.co
*.hq.citizenlab.co
*.citizenlab.co
*.citizenlab.co
epic.citizenlab.co
citizenlab.co
jobs.citizenlab.co
*.sandbox.citizenlab.co
jobs.citizenlab.co
*.meinaugustusburg.de
demain-mont-saint-guibert.be
*.citizenlab.co
jobs.citizenlab.co
design.citizenlab.co
*.hq.citizenlab.co
*.citizenlab.co
on.citizenlab.co
jobs.citizenlab.co
*.hq.citizenlab.co
www.zukunft-pfaffenhausen.de
www.zukunft-pfaffenhausen.de
citizenlab.co
*.citizenlab.co
citizenlab.co
citizenlab.co
jobs.citizenlab.co
jobs.citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
www.zukunft-pfaffenhausen.de
jobs.citizenlab.co
citizenlab.co
citizenlab.co
*.citizenlab.co
citizenlab.co
*.start.citizenlab.co
*.citizenlab.co
*.citizenlab.cl
demain-mont-saint-guibert.be
demain-mont-saint-guibert.be
*.citizenlab.co
*.citizenlab.co
*.meinaugustusburg.de
demain-mont-saint-guibert.be
*.start.citizenlab.co

Certificate

The complete raw certificate details for citizenlab.co in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1R4KN+nsljM76hmLqDnC
q+LggU1/CNme01x99EIN0A1bXdFFgnSgAsUIWmxsZ0eEs5KG8ZDCMU/mm1Efndah
wFPx3jnPgElORys5kTmgKjND00V0apgeLBBLldHpZWqMu45jdaZYfbMcICWvQn2N
GSc/fuxDz+IvnVvTob8/Es3rfrA3bIFb7aNV8jHvoHdh6YYwPhsyyjX5uYidkr+R
gfmp/tV9I/DAo5PEEju4jYmep2ZNKTN1fH01p21Ub5cCV3QqmmDu+8f2SKBhAY95
AcJM5ElnAcBMPGr1eaNe8Bf8b1Woavg+buS83aK0hRHft1YZFW4iwR7q37U7qoT3
9wIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 352024768423928667044045271348843414036495
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-30 21:16:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-29 21:16:22 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'citizenlab.co'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26903572192287313453152510703427940652938869150180091072924776425351185804980387717275692941960847391321500421618293611512809141629130701864678892333838880089965115985424209119188390871525897909577714065113787312282884627233152421526402602284109208470552540746711492820926812830625966181218641662324540510374629044124399108205519026995445968266710583613485706808782889828990087655825122251056933272388898607005242993325906116926002613524976074773490594481153452842392015420712803729995499056199001253971977569539385350460609767010456956671706328997371220975956520310718735953977890497801813262098195073640375957911543
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							afd1f97ce35fecda4c4cd851a8f7ce4c02db2a08
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (73 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'citizenlab.co'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.citizenlab.co'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d5c71e163000004030047304502210092913e85d8c1bf11455b228bab437f692d324d7f6487fdfbad3573c8e801a531022005ab93ab83646730a6a1e42a6474b585a422aabc7164448debf6347996a843160077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d5c71e1640000040300483046022100c40a803df6dc2e5dc2d5f8b862caf5a80315d9634e8c64f541769b69fd06519d022100b3771f750132491f8efb11e3c5dc568a13854f00b2fe8970c5f4ae2d669d73b6
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		0044091797ddb324c178ed79b30f654f09dcc451ddb9f93a907aea36d35cfe8e36b890d332f387d5c16e8172a192d274cfd091f1a6d63bcf2970ee48cec278be327abea8699ac8a37823ae85442062185562caa2073f83533b89360150d4113a1a6dd54b4cfea305214073522742e0e78cec111d75b5b313ef4b3a0e5368497a32dc686630b16b3132eb52512e7ac4c24b6572fb30e52e4f8dbaec725d459a31e9d8438ecd1b13d396464c8e542af4eb98f7a2bf46a023756633a8fb8f47c5d10483f82cf93bda9fe29c0dc6c79d4106e5cf1d4de39b95a275f1f3a0ffcb593df21a328447f9fc7197467ef62aa9e57034603b38467d5c5128657911922f45e366